واژه های تصادفی
واژه های مجاور
Center punch
Center punch
توضیح فارسی
قلم فولادی علامت زن، سمبه نشان
Description
A small, metalworking punch used to make an impression in a piece of metal to hold the point of a twist drill so it can start cutting without walking over the surface of the metal. The point of a center punch forms an angle of approximately 60°. This angle allows the drill to start cutting easily.
